cardDAV contacts error Atmail Cloud

I have synced my em Client to Atmail cloud contacts, however when I create a contact in eM Client and it tries to sync the other way I get an error:

“Failed to upload item . . .
Internal server error (InternalServerError) . . .”

It seems that it is a server problem, but you can send us your CardDav log so we can analyze it. Thank you.

Hello George, thank you for your response.

I have sent the log files in to the support address. Is that what you meant?

Yes, we will analyze them and let you know as soon as possible.